/*var bstr="node"
var bfoo="hello"
function badd(x,y){
return x+y
}
exports.foo=bfoo
exports.add=badd*/
var node=require("./a");
console.log(node.add(1,2));
console.log(node.jian(3,1));
console.log(node.chen(3,4));
console.log(node.chu(4,2));